Centrifugal separator



tion of the apparatus; and Fig. 2

UNITED STATES PATENT' OFFICE.

CENTRIFUGAL SEPARATOR.

SPECIFICATION forming part of Letters Patent No.

408,791, dated August 13, 1889.

Application iledApril 15, 1889. Serial No. 307,218. (No model.)

.To all whoml t 11i/ay concern:

Be it known that I, CHARLES L.

CAIRNS, of Jersey City,

in the county of Hudson and State of New Jersey, have invented an Improvement in Centrifugal Separators, of which the following is a specification.

Centrifugal separators have heretofore been supported by a central shaft with abasket at the upper end thereof, and in some instances the lower end of the shaft has been received into a socket mounted in yielding lever-bearings, so that the separator was free to yield toinequalities of the weight contained in the basket as such separator was rotated or spun around rapidly.

My present invention .is made with reference to simplifying the construction `of the yielding supports for the socket at the lower end of the vertical shaft to render such yielding supports more durable and less cumbersome than those heretofore employed.

In the drawings, Figure l is a vertical secis a plan view, partially in section, below the line a: .'1", Fig.

The basket A is of any desired size or shape, and the vertical shaft B is securely fastened to the center of the bottom of the basket and provided with a pulley C fora belt by 'which the centrifugal separator is revolved. The lower end of the vertical shaftA is received into a socket D, and it is free to be revolved therein. There is a globular bearing E around the central4 portion of the socket D, and this bearingE is received into the concave upper surface of the ring F. A concave cap G is placed above the globular bearing E and bolted to the ring F, by means of which the globular bearing is held in place and the socket left free to rock in any direction upon this globular bearing.

The base II is of suitable size and shapepreferably circular, with a central hole-and supports are provided between the base I I and the ring F. I prefer to make these supports tubular, as at I, with their outer ends closed, and these tubular supports receive within them theplugs K, that stand radially to the lower portion of the socket D. Spiral springs 3 are provided between the inner ends of the plugs and within the ends of the tubular sockets I, said springs being under a slight compression in their normal condition.

Rising above the ring F are brackets L, the upper portions of which are tubular and closed at their outer ends. These tubular brackets receive the plugs O, that slide freely therein, and are provided with springs 4 at their inner ends for forcing the plugs against the exterior of the socket D near the upper end thereof, said plugs O occupying' radial positions, or nearly so, to the socket D.

It is now to be understood that the plugs K and C, surroui'iding the upper and lower portions of the socket D, hold the said socket in a vertical position, and that the basket A and vertical shaft li can be revolved at any desired speed by the pulley C and a belt; but if the contents of the basket are unequal, so that the centrifugal apparatus is thrown out of balance, the plugs K and O will yield, and the socket D will oseillate more or less upon the globular bearing E, thus allowing' the shaft to revolve or spin freely without injury to the apparatus It is not necessary that the springs 3 and it be very heavy or strong, as but little power is required to maintain the separatorin avertical position while being' revolved, and I remark that in some sizes of centrifugal separators it is not necessary to use both ranges of plugs K and C, as either the top range C or the bottom range K of the plu gs and their accompanying springs will serve to maintain the socket D in the proper position.

It is to be understood that the basket A is perforated, as usual, to enable the liquid materials to passaway from the basket under the centrifugal action.

l. The combination, with the basketA and vertical shaft B, of the tubular socket D, having a globular bearing around the exterior surface thereof, the ring F and cap G for receiving such globular bearing, and a range of tubular supports, springs, and plugs occupying radial positions to the socket for sustaining the same, substantially as set forth.

' 2. The co1nbination,with the basket, the vertical shaft, and the pulley, of the tubular socket D,having a globular bearing, the ring F and cap G, the base Il, the tubular sup TOO ports I between the base ll mul ring l?, the le the sockel; :md meting against the same, plugs li, :uid springs 3 within lhe tubular seid plugs being received inte tubes upenthe supportsmld bearing'against the lewerpnrt of: ring' mul base respectively, Substantially as the tubular socket, substantially :is set ferih. set forth.

5 The combination, with the vertical shaft Signed by me this 12th lay ef April, .1880.

:md the basket, el? the tubular seekell), having n globular bearing, the ring F mul cap G CHARLES L. CATRNS. for supporting' said bearing, the base-plate ll, lilfuessesz wil-h which ille ring' .l is connected, sind two Gm). i. PINCKNEY,

ro ranges ef plug-s mul springs plueeil radially \\']LLIAM G. lllOTT. 

